#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
Implementacja narzedzia ``wc`` z linuksa (word counter).
Zwraca liczbę słów, znaków i linii.
"""

import sys
import argparse


def count_lines(text):
    """ return number of lines. """
    return len(text.strip().split('\n'))

def count_words(text):
    """ return number of words. """
    return sum([len([1 for word in line.split(' ') if len(word)])
                for line in text.split('\n')])

def count_chars(text):
    """ return number of words. """
    return len(text)

def wc(text):
    """ proper wc """
    lines = count_lines(text)
    words = count_words(text)
    chars = count_chars(text)
    return lines, words, chars


def main():
    """ main """
    print(wc(sys.stdin.read()))

    parse = argparse.ArgumentParser()
    parse.add_argument('--l', help = 'number of lines', action = 'store_true')
    parse.add_argument('--w', help = 'number of words', action = 'store_true')
    parse.add_argument('--c', help = 'number of characters', action = 'store_true')
    parse.add_argument('file', help = 'filepath', type = argparse.FileType('f'), nargs = '?')
    args = parse.parse_args()

    if args.file is None:
        opt = sys.stdin.read()
    else:
        opt = args.file.read()

    if args.l:
        output = count_lines(opt)
    elif args.w:
        output = count_words(opt)
    elif args.c:
        output = count_chars(opt)
    else:
        output = wc(opt)

    print(output)

if __name__ == "__main__":
    main()